Home / 14,840.10-20,479.58-8,125.61

Finding the Fourth Proportional to 14,840.10, 20,479.58 and 8,125.61

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Solution

The fourth proportional to 14,840.10, 20,479.58 and 8,125.61 is: 11,213.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,840.10 : 20,479.58 = 8,125.61 : x
  2. Step 2: Convert to fraction form
    14,840.10/20,479.58 = 8,125.61/x
  3. Step 3: Cross multiply
    14,840.10x = 20,479.58 × 8,125.61
  4. Step 4: Simplify right side
    14,840.10x = 166,408,937.02
  5. Step 5: Solve for x
    x = 166,408,937.02/14,840.10
  6. Step 6: Final answer
    x = 11,213.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.